CN201058193Y - Reparable cable type linetype constant temperature, difference constant temperature fire detector - Google Patents
Reparable cable type linetype constant temperature, difference constant temperature fire detector Download PDFInfo
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- CN201058193Y CN201058193Y CNU2006201534702U CN200620153470U CN201058193Y CN 201058193 Y CN201058193 Y CN 201058193Y CN U2006201534702 U CNU2006201534702 U CN U2006201534702U CN 200620153470 U CN200620153470 U CN 200620153470U CN 201058193 Y CN201058193 Y CN 201058193Y
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- insulating barrier
- temperature
- constant temperature
- fire
- fire detector
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Abstract
Disclosed is a recoverable cable type fire detector with linear temperature determination and temperature-difference temperature determination , which comprises a signal decoder, a terminal processor and a temperature sensing cable. The structure of the temperature sensing cable is characterized in that two main conductors (1) with an NTC temperature-sensitive insulation layer and a compensation wire (3) with an insulation layer are twisted as a pair; an aluminum-plastic belt layer (6) is arranged outside; one or more shield wires (7) and a flame-retardant external protection sleeve layer (5) are arranged along the axial direction. With high temperature-sensitive alarming sensitivity and strong electromagnetism-resistant compatibility, the utility model adopts two alarm modes of multi-level temperature determination and multi-range temperature-difference changing speed to eliminate the false alarming ratio, and the utility model can make real-time monitor to the temperature of the detected environment and has explosion-proof function.
Description
Technical field
The utility model relates to the fire detector of fire-fighting domain, a kind of renewable type cable linear constant temperature, different constant temperature fire detector.
Background technology
At present,, in a lot of buildings and the particular place fire detector has been installed, has been comprised line type fire detector in order in time to grasp fire and fire preventing.Line type fire detector remolding sensitivity in the middle of great majority use now is lower.The applicant's utility model patent formerly (ZL02273243.8), a kind of line type fire detector of renewable type can be monitored the wide temperature rate range.Owing in this patented technology, adopt the high resistant thermo-sensitive material, the processing technology more complicated, and decoding signals, termination box circuit are also complicated, the production cost height.Also have decoding signals, that termination box is influenced by envionmental humidity is bigger, Electromagnetic Compatibility is poor, the warning precision is low.This in addition exploration cable does not have explosion-proof function, therefore can't satisfy the performance requirement of GB16280-2005 " line-type heat detector ".
Summary of the invention
The purpose of this utility model is to provide a kind of renewable type cable linear constant temperature, different constant temperature fire detector, and improve reliability, different temperature grade and heating rate are made response, and reusable.
Renewable type cable linear constant temperature, different constant temperature fire detector, comprise decoding signals, terminal handler, temperature sensing cable, it is characterized in that the temp.-sensing wire cable structure: two leading bodies have NTC temperature-sensitive insulating barrier outward respectively, one or an above compensating wire have insulating barrier outward, leading body twists after becoming thigh with compensating wire, and fire-retardant external sheath layer is arranged outward.
The design's fire detector key technology is the structure of constant temperature, different constant temperature temperature sensing cable, it adopts NTC temperature-sensitive insulating materials, temperature sensing cable value of having a resistance when variations in temperature is changed, decoding signals adopts intellectualized technology that the signal of telecommunication is carried out integrated treatment, and variation of ambient temperature is sent alarm signal.The design's fire detector can possess constant temperature warning and two functions of differential temperature warning simultaneously, the constant temperature operating temperature that can set is: 60 ℃, 70 ℃, 85 ℃, 105 ℃, 138 ℃, 180 ℃ six grades, the temperature range that is suitable for is wide, is particularly useful for fire temperature rise ratio place faster.The differential temperature actuation of an alarm changes according to heating rate: 10 ℃/min (response in 20s～140s), 20 ℃/min (response in 22.5s～90s), 30 ℃/min (response in 15s～60s), and long service life, can be repeatedly used, can repeat at least 20 times through test.Because constant temperature, different constant temperature temperature sensing cable adopt wrapped conductor structure, make its external diameter little, temperature-sensitive is reported to the police and can be monitored in real time the acquisition environment temperature, and multistage constant temperature, twice type of alarm of many grades of differential temperature speed are highly sensitive, eliminates rate of false alarm.The no power of product own belongs to essential safe type, and good product quality, reliability height, cost is low, Installation and Debugging are easy to use, all satisfies the performance requirement of GB16280-2005 " line-type heat detector ".
Description of drawings
Fig. 1-Fig. 6 is the axial schematic diagram of the design's fire detector temperature sensing cable structure example 1-example 6;
Fig. 7 is the detector wiring schematic diagram of example 1 and example 4; Fig. 8 is the wiring schematic diagram of all the other examples;
The specific embodiment
Renewable type cable linear constant temperature, different constant temperature fire detector (2), comprise decoding signals, terminal handler, temperature sensing cable, it is characterized in that the temp.-sensing wire cable structure: example 1, see Fig. 1: two leading body 1 outer NTC temperature-sensitive insulating barriers 2 that are coated with respectively, one or the above compensating wire 3 outer insulating barriers 4 that twine, with two leading bodies that NTC temperature-sensitive insulating barrier 2 arranged 1 and have one of insulating barrier 4 or above compensating wire 3 totally three bursts of strands to after, the fire-retardant external sheath layer 5 of extrusion molding together again.
Example 2, see Fig. 2: with two leading bodies that NTC temperature-sensitive insulating barrier 2 arranged 1 in the above-mentioned example 1 and have one of insulating barrier 4 or above compensating wire 3 strand to after, then twine plastic-aluminum or copper mould belt 6, axially along the shielded conductor of putting more than one or one 7, the fire-retardant external sheath layer 5 of extrusion molding together again.
Example 3, see Fig. 3: with two leading bodies that NTC temperature-sensitive insulating barrier 2 arranged 1 in the above-mentioned example 1 and have one of insulating barrier 4 or above compensating wire 3 strand to after, then twine plastic-aluminum or copper and mould belt 6, axial along the shielded conductor of putting more than one or one 7, twine insulating barrier 4, the more fire-retardant external sheath layer 5 of extrusion molding together.
Example 4, see Fig. 4: with two leading bodies that NTC temperature-sensitive insulating barrier 2 arranged 1 in the above-mentioned example 1 and have one of insulating barrier 4 or above compensating wire 3 strand to after, twine insulating barrier 4, the more fire-retardant external sheath layer 5 of extrusion molding together.
Example 5, see Fig. 5: with two leading bodies that NTC temperature-sensitive insulating barrier 2 arranged 1 in the above-mentioned example 1 and have one of insulating barrier 4 or above compensating wire 3 strand to after, axially, then twine plastic-aluminum or copper and mould belt 6, the more fire-retardant external sheath layer 5 of extrusion molding together along the shielded conductor of putting more than one or one 7.
Example 6, see Fig. 6: with two leading bodies that NTC temperature-sensitive insulating barrier 2 arranged 1 in the above-mentioned example 1 and have one of insulating barrier 4 or above compensating wire 3 strand to after, axially along the shielded conductor of putting more than one or one 7, then twine plastic-aluminum or copper and mould belt 6, twine insulating barrier 4, the more fire-retardant external sheath layer 5 of extrusion molding together.
During use, the example 1 and example 4 modes of connection are seen Fig. 7, leading body 1 two ends of temperature sensing cable are linked to each other with the terminal of decoding signals 9 and terminal handler 10, and compensating wire terminates on the public terminal for 3 liang, and decoding signals 9 links to each other with fire alarm control unit by signal bus 8.The mode of connection of all the other examples, see Fig. 8: leading body 1 and the same Fig. 7 of compensating wire 3 modes of connection, plastic-aluminum belt 6 and shielded conductor 7 are connected on the terminal of decoding signals 9 and terminal handler 10 after twisting into one.When the site environment temperature raises, the NTC thermo-sensitive material of temperature sensing cable is heated, resistance value changes between leading body and the compensating wire, with variation of ambient temperature, resistance value also increases, first kind of situation: when the environment temperature rising reached this detector setting value, detector sent alarm signal; Second kind of situation: when environment temperature rising speed reached setting rate value in the decoding signals, detector also can send alarm signal.After the site environment temperature descends, it is normal that the resistance of leading body and shielded conductor also can be recovered with the decline of environment temperature, therefore the design's product is reusable in the serviceability temperature scope of a plurality of grades, possesses two kinds of functions that differential temperature is reported to the police and constant temperature is reported to the police simultaneously.
Claims (6)
1. renewable type cable linear constant temperature, different constant temperature fire detector, comprise decoding signals, terminal handler, temperature sensing cable, it is characterized in that the temp.-sensing wire cable structure: NTC temperature-sensitive insulating barrier (2) is arranged respectively outside two leading bodies (1), insulating barrier (4) is arranged outside two compensating wires (3), two have the leading body (1) of NTC temperature-sensitive insulating barrier (2) to have the compensating wire (3) of insulating barrier (4) to twist after becoming thigh with one, fire-retardant external sheath layer (5) are arranged outward.
2. renewable type cable linear constant temperature according to claim 1, different constant temperature fire detector, it is characterized in that two have the leading body (1) of NTC temperature-sensitive insulating barrier (2) and compensating wire (3) that one has insulating barrier (4) strand to after, there is plastic-aluminum belt (6) outside, axially along shielded conductor (7) and the fire-retardant external sheath layer (5) put more than one or one.
3. renewable type cable linear constant temperature according to claim 1, different constant temperature fire detector, it is characterized in that: with two the leading body (1) of NTC temperature-sensitive insulating barrier (2) is arranged and have one of insulating barrier (4) or an above compensating wire (3) strand to after, then be that plastic-aluminum or the copper that twines is moulded belt (6), axial along the shielded conductor of putting more than one or (7) successively, twine the fire-retardant external sheath layer (5) of insulating barrier (4) and extrusion molding.
4. renewable type cable linear constant temperature according to claim 1, different constant temperature fire detector, it is characterized in that with two the leading body (1) of NTC temperature-sensitive insulating barrier (2) is arranged and have one of insulating barrier (4) or an above compensating wire (3) strand to after, the insulating barrier (4) of winding and the fire-retardant external sheath layer (5) of extrusion molding are arranged outward.
5. renewable type cable linear constant temperature according to claim 1, different constant temperature fire detector, it is characterized in that with two the leading body (1) of NTC temperature-sensitive insulating barrier (2) is arranged and have one of insulating barrier (4) or an above compensating wire (3) strand to after, axially, the plastic-aluminum of winding or the fire-retardant external sheath layer (5) that copper is moulded belt (6) and extrusion molding are arranged outward along the shielded conductor of putting more than one or (7).
6. renewable type cable linear constant temperature according to claim 1, different constant temperature fire detector, it is characterized in that with two the leading body (1) of NTC temperature-sensitive insulating barrier (2) is arranged and have one of insulating barrier (4) or an above compensating wire (3) strand to after, axially, the plastic-aluminum of winding or the fire-retardant external sheath layer (5) that copper is moulded belt (6), winding insulating barrier (4) and extrusion molding are arranged outward along the shielded conductor of putting more than one or (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201534702U CN201058193Y (en) | 2006-12-05 | 2006-12-05 | Reparable cable type linetype constant temperature, difference constant temperature fire detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201534702U CN201058193Y (en) | 2006-12-05 | 2006-12-05 | Reparable cable type linetype constant temperature, difference constant temperature fire detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201058193Y true CN201058193Y (en) | 2008-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201534702U Expired - Fee Related CN201058193Y (en) | 2006-12-05 | 2006-12-05 | Reparable cable type linetype constant temperature, difference constant temperature fire detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201058193Y (en) |
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2006
- 2006-12-05 CN CNU2006201534702U patent/CN201058193Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080514 Termination date: 20121205 |